Pollak Wiring - PK12716. Quickly and easily convert a 7-pole, RV-style connector to a 4-way, flat connector with this RV connector adapter. Adapter has a non-corrosive nylon shell.. The Curt rear hitch was installed on a 2010 Honda CR-V to use with a bike rack. Very good quality and nice look. However, you can not use the standard hitch tool that comes with a Thule bike rack to tighten the hitch pin into the receiver because of the receiver's short design..